Switch-throw.



W. HARDIUK '& L. A. OGDEN.

SWITCH THROW.

APPLIOATION FILED JUNE 16, 1913.

Patented Sept. 15, 1914.

2 SHEETSSHEET 1.

Attorneys.

W. HARDIGK & L. A. OGDEN.

SWITCH THROW.

APPLICATION FILED JUNE'IG, 1913.

2 SHEETS-SHEET 2.

. Attorneys.

THE NORRIS PETERS 60.. PHOTOVLITHOH WASHINGTON, D. C,

Petentea se t.15,1914.

UNITED WILLIAM I-IABDICK, or CADILLAC, AND LEROY A. OGDEN, or GRAND m rIDs, MICHI- 4 views alluded to infthat portion fofthis.

GAN', ASSIGNORS or QNEJIHIRD To GEORGE JoHNs'roN, or CADILLAC); MICHIGAN.

v SWITCH-THROW.

A Specification of Letters Patent.

Patented Sept.'15, 1914.

To all whom may concern .1

Be it known that we, WILLIAM HARD oK and LEROY A. OGDEN, citizens of the United States, Grand-Rapids, in the countiesof NGXfOId.

and Kent, State of Michigan, have invented a new and useful Switch-Throw, of which the following is a specification.

The device this application is a means whereby the doors of a switchmanscage may be controlled during the operation which :termithe link constituting means whereby the nates in' a throwing of the switch point.

The invention aims to provide novel means whereby the door of the switchmans cage will be closed and opened during the; operation which terminates in the throwing of the switch point, the end in View being. to prevent the switchman from; leaving-the cage while the switch pointisset for a siding. i

i It is'within the scope of the invention to improve generally and to enhance the util-Q .ity of devices of that type to which the, 25 p primarily resent invention appertains.

With the above and other objects in viewwhich will appear as thedescription pro-; the invention resides in the combina-;

'ceeds, tion and arrangement of parts andin the details of construction hereinafter described I and claimed, being understood that changes in the precise embodiment of the invention herein disclosed can be niadei within the scope of what is claimed without departing from the spirit of the invention. In the drawings Figure 1 shows in vertical longitudinal section, a switchmams' cage to which the present invention has been applied, parts appearing in elevation;

the, actuatingshaft and theparts carried thereby; Fig. 3 is a fragmental top plan showing a portion of the mechanism where- Fig. 2 1s a perspective showing a portion of by'an unauthorized opening of the door of the switchmans cage is prevented; Fig. 4 is atop plan of the cage and the mechanism contained therein, Fig. 5 is a transverse section through the top of the switch stand on the line 5-.5 of Fig.1; Fig. dis a perspective detail illustrating the inner and outer tubes which are carried by the actuating shaft; Figs. 7 and 8 are diagrammatic residing respectively at Cadillac and.

forming the subject matter of specification wherein the operation of the device is set forth. i

In carrying out the invention there is provided a switchmans cage 1 withinwhich is located a switch stand 2. The invention includes an actuating shaft 3, preferably disposed vertically,the lower end 4 of the actuating shaft 13 beingof circular contour and being journaled for rotationin the switch stand 2. Secured to the lower end 4 of the actuating shaft 3 is an arm 5 or other suitable mechanism, connected with a link 6,

switch point is actuated directly.

-Throughout the major portion of its length, theactuating'shaft 3 is square as indicated at 7 Referring. particularly to Fig.

5, the top of the. switch stand'2 is denoted by the numeral 8 and is provided" with a squared socket 9 adapted to receive the lowerend of 'a correspondingly shaped head 10, the head 1O receiving slidably, but against relative rotation, the squared portion 7 of the actuatingshaft 3. A lever 11 is fulcrumed intermediate its ends, as shown at-12 upon the head 10 and suitable latch mechanism 1 10f any sort is mounted upon the switch stand 2, to cooperate with the lever 11 whenthe same is in the depending position shown in Fig. 1. Links 15 connect the lever 11 with a collar 16 which is journaled for rotation upon the upper end 8 of the switch stand 2.

The invention in'cludesan inner tube 17 mounted to rotate upon the actuating shaft 3 and to slide longitudinally thereon, the tube 17 being equipped at its upper end with a transversely extended head 18- cooperating with ahollow head 19 upon. an

outertube: 20, the tube 20 surrounding the .tube 17 and being mounted to slide andto slot 22 and to engage beneaththe top 23 of the head 19. I At its upper end, the shaft 3 carries signals 25 of any desired form.

Mounted upon the squared portion 7 of the shaft 3 adjacent the upper end ofthe shaft transversely extended arm 26, the arm 1 s in the present instance being shown. as provided with a socket 527 inclosing the squared arm 39 is equipped with a slot 40 receiving a pin 41"outstanding from the-inner tube 17.; Let it be assumed that the doors arej open as shown in Fig. 1 andas indicated diagrammatically'at 45in Fig. 7, the numeral 5 42 indicating the main rails, the numeral 43 indicating the siding rails and the numeral 44 indicating the switch point. 5 Then the tion.

will be imprisoned within the cage 1 and; in 'this connection: it is to benoted that the portion 7 of the shaft 3 and held thereon by will be set forth hereinafter.

The switchmans cage 1 is equipped wlth one or more doorways 29 controlled by doors a set. screw28. The function of .the arm26.

' 30 which may be mounted to move in any desired manner. Intthe present instance,

the doors 30 are shownas equipped with hangers 31 engaging tracks 32 upon the cage 1, the doors being held by cage-supj ported keepers 33. Adjacent its upper end,

the cage 1 supports bearings 34 in which is journaled for rotation a transverse counter- Jsh'aft;35 having depending primary arms :36 equipped at their lower ends with elongated slots 37 receiving studs 38' mounted upon the doors 30. Intermediate its ends, the counter-shaft 35 is provided with a secondary arm :39Wh10h*prO] 6CtS.1Il an o posit'e direction from the arms 36. As shown to best advantage in Fig. 2, the secondary operation of the device is as follows: 7

- Th'e switch man enters the-cage 1 and, When the lever 11* elevates the lever 11;

is elevated, the lower end of the squared headll) is lifted out of the. squared socket '9-in the part 8 of the switch stand '2. When. the lever 11 is elevated, the link 21 will ele- .vate the outer tube 20,the top 23 of the head 19 of'the tube 20 abutting against thehead 18 of'the inner-"tube 17. Inthis manner, when the lever 11 is elevated, the inner tube 17 :will beelevated also,

and the pin 41, moving in thefslot 40 of the secondary arm 39will impart rotation to the shaft 35,

the primary arms 36 being actuated and the doors 30 being swungto a closedposi- By this operation,- the switch man arm 26 which iscarried by the squared portion 7 of theshaft3 {is adapted to engage angle of withinthe head 10,"as clearly shown in Fig.

5. During the operation above described thecollar 16 will rotate upon the upper'end I When the shaft 3 1s thus rotated, the crank arrni5 which 8 of thesx'vitch stand 2'.

is secured to the lower end of the shaft 3 will impart movement toythe link 6 and to the switch point 44, so that the same assumes an open position with respect. to

" the main line '42,- as shown in the doors 30 of the switchmans cage having been closed, asindi'cated at 47 in Fig. 8.

lVhenthe outer tube 20 is rotated through the actionlof the lever 11', theslot 22wi11 be moved until the same is in alinement with'the pin or projection 24 which out-;

stands 'from'the inner tube 17;. If the lever ll be depressed, the" head 10 will-engage again with the socket 9, the slot'22 permitting relative sliding' movement between the tube 20 and the tube'17, so that'the parts. *appea'ras shown in Fig. 6; The switch point is now set for thefsiding, as shown in Fig. 8, the doors are held closedas shown at 47 and the switchman is within the cage.

It is therefore obvious that before the switchman can leavethe' cage 1, the parts must be returned to the positions shown, in Fig; -1 and the switch indicated at 44 in Fig. 7. Thus, it is impossible for the switchrnan to leave his post point must be-"setas Q when the switch point is set forthe siding. Q In order to openthe doors 30 as "shown r at 45 and to restore the switch point to the I position-indicated at 44 in Fig. 7, the

lever 11 is raised and swung horizontally.

to its original position and depressed, This operation will bring the head 19finto en'- gagement with the head 18 and when the tube 20. is rotatedfthe projection 24 will assume a, position to one side ofthe' 51b; .22 and beneath the top 2301i theh'ead' 19. Therefore, when 'thelever l'lqis swung downwardly and when the outer tube is depressed, the outer tube 17 will be depressed. also, the arm 39 and the shaft being actuated, the parts being'restor'ed toil" the position shown in Fig. 1.

Vhenthedoors 30 are moved to ayclosed position, the arm 26,'upon a rotation of the shaft" 3 engages beneath the arm 39. Recalling that the tubes 17 the positions shown (in Fig.5, it will be seen that the arm'26, beingengaged beneath the arm 39, prevents the tube 171 frombeingslid. downwardly within the tube 20, through a manual manipulation of the arm 39. The switchmam'therejfore, cannot open the doors while the switch point is, in the. position shown in Fig. 8.that is, while the switch point is set forthe siding. I

and 20 are in r Havingthusdescribed the inventiomwhat is claimed is r 1. In a devicev of the switchmans cage having a movable-door;

class described, a-

4 p ing m y-switch throwing means; coactlng m'embers,-';one of which is operatively connected to the door'operat ing'1neans',-.the other of which is operatively connected to the throwing means; a locking deviceinterengaging elements on said coacting members, said members being relatively movable to permit the throwing means to engage the locking device; and a member adapted to engage the door operating means to hold the door closed, the last specified member being operatively connected with the throwing means.

-2. In a device of the class described, a switchmans cage having a movable door; door operating means; an actuating shaft; an arm on the shaft adapted to engage the door operating means to hol the door closed; a member movable upon the shaft and connected with the door operating means, to close the door and to bring the door operating means into the path of the arm; means for connecting the shaft to a switch point; and mechanism for simutane- 'ously operating the shaft and actuating said member.

In a actuating device of the class described, an shaft; a pair of independently movable tubes upon the shaft; interengaging elements upon the tubes; door operatlng mechanism connected with one tube; means for connecting the shaft with a switch point; and shaft actuating means operatively connected with the other tube to move the same.

4. In a device of t c class described, an

actuating shaft; means for connecting the v shaft with a switch point; a switchmans cage having a movable door; door operating Vmeans; shaft and operably connected with the door operating means; a member on the shaft, cooperating with the door operating means to hold the door closed; a switch throwing mechanism operatively connected with the shaft and with said movable member.

In testimony that we claim the foregoing as our own, we have hereto affixed our signatures in the presence of two witnesses.

WILLIAM HARDICK. LEROY A. OGDEN.

Copies of this patent may be obtained for five cents each,by addressing the "Commissioner of Patents,

Washington, D. C. 

